Answer:
Diría unas 225 yardas
La respuesta en la captura. No me permite postear la por supuestamente utilizar lenguaje inapropiado
The operation is known as rounding of a number.
This means basically if i measure the temperature of a city and it comes out to be 22.9 degrees. I will round it of to 30 degrees or the amount of significant figures i am designated with.
Similarly if its 22.85 and i have to round of to 3 significant figures it becomes 22.9 degrees.
ROunding off is obviously done watching to which digit we have to.
Answer:
Step-by-step explanation:
GIVEN: Suppose you want to make a cylindrical pen for your cat to play in (with open top) and you want the volume to be cubic feet. Suppose the material for the side costs per square foot, and the material for the bottom costs per square foot.
TO FIND: What are the dimensions of the pen that minimize the cost of building it.
SOLUTION:
Let height and radius of pen be
Volume
total cost of building cylindrical pen
for minimizing cost , putting
Hence the radius and height of cylindrical pen are and respectively.
((x+2)(x+2))-((x-5)(1))=A
x^2+4x+4-x+5=A
x^2+3x+9=A
2 x - 125 = 400
2 x = 400 + 125
2 x = 525
x = 525 / 2
x = 262.5